.el-tree {
    color: white;
    background: transparent;
    --el-tree-node-hover-bg-color: #409EFF80;
    /* 改成淡黄色 */
}

:deep(.el-text) {
    --el-text-color: #ffffff;
    // color: #ffffff
}

:deep(.el-tree-node__expand-icon) {
    color: #fff;
}